نتایج جستجو برای: diabase porphyry

تعداد نتایج: 1131  

2002
James Macdonald

referred to as the Main Copper zone (Figur : 6-2-2). I h j pecting in the Brucejack Lake $rea continuel 1 intermimnt:.y until 1959, when gold and siher mineraliz Ition was first reported. In 1960, Granduc Mines Ltd. st& :d most of the area comprising the current property and bel an an explom tion program for porphyry copper mineralii ation, emplo:iing airborne and ground geophysics in add Ition...

2011
Amin Beiranvand Mazlan Hashim

The spectral and spatial properties of the advanced spaceborne thermal emission and reflection radiometer (ASTER) data can be used in detailed lithological and hydrothermal alteration mapping related to copper and gold mineralization, particularly the shortwave infrared radiation subsystem where hydrothermal alteration minerals have diagnostic spectral absorption features. This paper reviews th...

2000
Margaretha Scott

The Geological Survey Office (GSO) undertook a pilot study with the objective of assessing the ability of Survey data to support modern quantitative mineral potential modelling techniques. The Yarrol pilot project was designed to audit digital data sets routinely produced by the GSO, and to provide mineral assessment outputs relevant to both industry and Government decision-making processes. Th...

حیدریان‌شهری, محمدرضا, زرین‌کوب, محمدحسین, مظاهری, سیداحمد , نخعی, ملیحه , کریم‌پور, محمدحسن ,

The study area is located in North-East of Lut block, and in Basiran Geological Quadrangle Map (1:100000).Tertiary intrusive-subvolcanic rocks intruded Paleocene limestone and formed skarn and Iron mineralization. Petographic studies show that rocks are Hbl-diorite porphyry, Hbl-qtz- diorite porphyry, Px-­ diorite porphyry, Hbl-px- diorite porphyry, Hbl-diorite and Bt-diorite. These rocks are s...

Journal: :British journal of environmental studies 2023

The exposure of Mesozoic rocks in the Mangilu area, both as a result tectonic deformation form mélange, low-high degree metamorphism and deep-sea sediments (flysch, radiolarian cherts, sediment flow olistostrome), which formed subduction zone indicates complex accretionary rocks. purpose this study is to identify trace era. method used was field observation, including collection geological data...

Journal: :The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 1956

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